File:Xray focus.gif
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Xray_focus.gif (324 × 168 pixels, file size: 5 KB, MIME type: image/gif)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:07, 12 September 2009 | ![]() | 324 × 168 (5 KB) | wikimediacommons>Marshallsumter | {{Information |Description={{en|1=Mathematically it has been shown that a reflection off a parabolic mirror followed by a reflection off a hyperbolic mirror can lead to the focusing of X-rays.}} |Source=NASA's Imagine the Universe! Goddard Spaceflight Cen |
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